CN208767075U - 一种10kV中压防火电缆 - Google Patents
一种10kV中压防火电缆 Download PDFInfo
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- CN208767075U CN208767075U CN201821534488.6U CN201821534488U CN208767075U CN 208767075 U CN208767075 U CN 208767075U CN 201821534488 U CN201821534488 U CN 201821534488U CN 208767075 U CN208767075 U CN 208767075U
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- 239000010949 copper Substances 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010445 mica Substances 0.000 claims abstract description 13
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 5
- 150000002367 halogens Chemical class 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
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Abstract
本实用新型涉及电力领域，具体的公开了一种10kV中压防火电缆，包括由多根线芯缠绕而成的缆芯和包裹在缆芯外侧的隔氧层、无机带绕包层、降温层、云母带绕包层和外护套层，并且从内向外依次设置，所述线芯包括有导体、第一半导电层、绝缘层、第二半导电层、铜带屏蔽层和齿形挡火层。增加三层隔氧护套，有效隔绝氧气进入缆芯；所有材料均为环保的低烟无卤材料、无机材料，燃烧时无有害气体释放；适用于大型高层建筑、人口密集的大型车站、重点工程等场所，确保使用安全；在防火级别要求高的场合，能确保安全用电，在燃烧中表现突出，能保证燃烧后3小时内线路的完整，为逃生提供时间，同时热释放也慢，增加了生存机率。
Description
技术领域
本实用新型涉及一种电缆，具体是一种10kV中压防火电缆。
背景技术
目前防火电缆产品其电压等级绝大部分集中在1kV及以下，而一些特大型高层建筑、国家大型重点工程等如果按惯例采用0.6/1kV低压配电，其电缆使用量及敷设安装工作量较通常建筑物成数十倍的增长，电缆敷设空间几倍增长，既耗材，又耗能，并且建筑物中电缆敷设过多、过大，也会给安全使用带来不利影响，因此像这些既需要中高压配电又要耐火防火的场合，就必须使用中高压防火电缆。
低压的比较多如BTTZ、RTTZ、BTLY等，而中压电缆的防火领域还处在起步阶段，并且基本上为绕包玻纤带用阻燃材料挤制外护套，该结构只能说阻燃性能较高达到A级阻燃，耐火测试也能通过仅仅是通过了GB/T19216.21中的750±50℃90分钟燃烧测试，但防火性能远远不够，按BS6387-2013的标准测试，线路完整性(C)、950±40℃燃烧180分钟保持线路完整；线路完整性(W)650±40℃15分钟，喷淋15分钟后保持线路完整；线路完整性(Z)950±40℃15分钟机械振动撞击，保持电路完整，才能说是防火电缆。
实用新型内容
本实用新型的目的在于提供一种10kV中压防火电缆，以解决上述背景技术中提出的问题。
为实现上述目的，本实用新型提供如下技术方案：
一种10kV中压防火电缆，包括由多根线芯缠绕而成的缆芯和包裹在缆芯外侧的隔氧层、无机带绕包层、降温层、云母带绕包层和外护套层，并且从内向外依次设置，所述线芯包括有导体、第一半导电层、绝缘层、第二半导电层、铜带屏蔽层和齿形挡火层，并且第一半导电层、绝缘层、第二半导电层、铜带屏蔽层和齿形挡火层依次向外设置。
进一步的：所述导体的材质为无氧铜，紧压系数达到90％，确保导体圆润紧密，20℃电阻小于0.153Ω/km。
进一步的：第一半导电层、绝缘层、第二半导电层三层共挤，厚度总和不小于4.5mm。
进一步的：所述第二半导电层外侧绕包铜带屏蔽层，其厚度为0.2-0.25mm，铜带屏蔽层确保电缆的局放小于云母带绕包层10pC。
进一步的：齿形挡火层由无卤陶瓷挤制而成，将缆芯和外护套进行第一步隔离。
进一步的：所述隔氧层采用陶瓷料挤制填充在齿形挡火层的外侧，保证电缆圆整，同时增加其隔热。
进一步的：所述无机带绕包层采用无机带绕包在隔氧层外，保护陶瓷料受热均匀成瓷，厚度2-3mm，加强对内部材料的保护。
进一步的：所述云母带绕包层采用云母带或陶瓷硅胶带绕包，对缆芯进行进一步保护。
与现有技术相比，本实用新型的有益效果是：增加三层隔氧护套，有效隔绝氧气进入缆芯；所有材料均为环保的低烟无卤材料、无机材料，燃烧时无有害气体释放；适用于大型高层建筑、人口密集的大型车站、重点工程等场所，确保使用安全；在防火级别要求高的场合，能确保安全用电，在燃烧中表现突出，能保证燃烧后3小时内线路的完整，为逃生提供时间，同时热释放也慢，增加了生存机率。
附图说明
图1为一种10kV中压防火电缆的结构示意图。
图中：1-导体，2-第一半导电层，3-绝缘层，4-第二半导电层，5-铜带屏蔽层，6-齿形挡火层，7-隔氧层，8-无机带绕包层，9-降温层，10-云母带绕包层，11-外护套层。
具体实施方式
实施例1
请参阅图，本实用新型实施例中，一种10kV中压防火电缆，包括由三根线芯缠绕而成的缆芯和包裹在缆芯外侧的隔氧层7、无机带绕包层8、降温层9、云母带绕包层10和外护套层11，并且从内向外依次设置。
所述线芯包括有导体1、第一半导电层2、绝缘层3、第二半导电层4、铜带屏蔽层5和齿形挡火层6，并且第一半导电层2、绝缘层3、第二半导电层4、铜带屏蔽层5和齿形挡火层6依次向外设置，所述导体1的材质为无氧铜，紧压系数达到90％，确保导体圆润紧密，20℃电阻小于0.153Ω/km，第一半导电层2、绝缘层3、第二半导电层4采用三层共挤方式生产，保证电缆的绝缘性能，第一半导电层2、绝缘层3、第二半导电层4的厚度总和不小于4.5mm；所述第二半导电层4外侧绕包铜带屏蔽层5，其厚度为0.2-0.25mm，铜带屏蔽层5确保电缆的局放小于云母带绕包层10pC；在铜带屏蔽层5的外侧设有齿形挡火层6，齿形挡火层6为无卤陶瓷挤制而成，将缆芯和外护套进行第一步隔离。
所述隔氧层7采用陶瓷料挤制填充在齿形挡火层6的外侧，保证电缆圆整，同时增加其隔热。
所述无机带绕包层8采用无机带绕包在隔氧层7外，保护陶瓷料受热均匀成瓷，厚度2-3mm，加强对内部材料的保护。
所述降温层9采用挤制无机物作为第三保护层。
所述云母带绕包层10采用云母带或陶瓷硅胶带绕包，对缆芯进行进一步保护。
所述外护套层11采用无卤低烟高阻燃料挤制。
实施例2
所述缆芯采用四根，四根线芯合并绕成缆芯；或者采用多根线芯绕成缆芯，根据实际生产需要求采用不同数量的线芯。
中压防火电缆电线和目前技术对比：
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
Claims (8)
1.一种10kV中压防火电缆，包括由多根线芯缠绕而成的缆芯和包裹在缆芯外侧的隔氧层（7）、无机带绕包层（8）、降温层（9）、云母带绕包层（10）和外护套层（11），并且从内向外依次设置，其特征在于，所述线芯包括有导体（1）、第一半导电层（2）、绝缘层（3）、第二半导电层（4）、铜带屏蔽层（5）和齿形挡火层（6），并且第一半导电层（2）、绝缘层（3）、第二半导电层（4）、铜带屏蔽层（5）和齿形挡火层（6）依次向外设置。
2.根据权利要求1所述的一种10kV中压防火电缆，其特征在于：所述导体（1）的材质为无氧铜。
3.根据权利要求1所述的一种10kV中压防火电缆，其特征在于：第一半导电层（2）、绝缘层（3）、第二半导电层（4）三层共挤，厚度总和不小于4.5mm。
4.根据权利要求3所述的一种10kV中压防火电缆，其特征在于：所述第二半导电层（4）外侧绕包铜带屏蔽层（5），其厚度为0.2-0.25mm。
5.根据权利要求1所述的一种10kV中压防火电缆，其特征在于：齿形挡火层（6）由无卤陶瓷挤制而成。
6.根据权利要求5所述的一种10kV中压防火电缆，其特征在于：所述隔氧层（7）采用陶瓷料挤制填充在齿形挡火层（6）的外侧。
7.根据权利要求1所述的一种10kV中压防火电缆，其特征在于：所述无机带绕包层（8）采用无机带绕包在隔氧层（7）外，厚度2-3mm。
8.根据权利要求1所述的一种10kV中压防火电缆，其特征在于：所述云母带绕包层（10）采用云母带或陶瓷硅胶带绕包。
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